CVE-2023-50821

State: Published
Severity: 6.9 Medium
Published: Apr 9, 2024
Updated: Feb 26, 2025
Reserved: Dec 14, 2023

Description

A vulnerability has been identified in SIMATIC PCS 7 V9.1 (All versions < V9.1 SP2 UC04), SIMATIC WinCC Runtime Professional V17 (All versions < V17 Update 8), SIMATIC WinCC Runtime Professional V18 (All versions < V18 Update 4), SIMATIC WinCC Runtime Professional V19 (All versions < V19 Update 1), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 16), SIMATIC WinCC V8.0 (All versions < V8.0 Update 5). The affected products do not properly validate the input provided in the login dialog box. An attacker could leverage this vulnerability to cause a persistent denial of service condition.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	siemens
3.1	6.2 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C	siemens

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
SIMATIC PCS 7 V9.1Siemens	before V9.1 SP2 UC04Affected
SIMATIC WinCC Runtime Professional V17Siemens	before V17 Update 8Affected
SIMATIC WinCC Runtime Professional V18Siemens	before V18 Update 4Affected
SIMATIC WinCC Runtime Professional V19Siemens	before V19 Update 1Affected
SIMATIC WinCC V7.5Siemens	before V7.5 SP2 Update 16Affected
SIMATIC WinCC V8.0Siemens	before V8.0 Update 5Affected

References

https://cert-portal.siemens.com/productcert/html/ssa-730482.html

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